<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
    <style>
      * {
        margin: 0;
        padding: 0;
        box-sizing: border-box;
      }
      body {
        height: 100vh;
        background: linear-gradient(45deg, #bfbfbf, #e6e6e6);
        display: flex;
        justify-content: center;
        align-items: center;
      }
      h1 {
        font-family: "Courier New", Courier, monospace;
        font-size: 20vmin;
        line-height: 1;
        margin: 0;
        letter-spacing: 5px;
        color: #e6e6e6;
        text-align: center;
        /* 右上角白色描边 , 左下角灰色描边 */
        text-shadow: 1px -1px #fff, -1px 1px #999, -10px 10px 5px #808080;
      }
    </style>
  </head>
  <body>
    <h1>
      shadow
      <br />
      text
      <br />
      effect
    </h1>
  </body>
</html>
